Size dependence of the vortex states in mesoscopic superconductors

Size dependence of the vortex states in mesoscopic superconductors

We investigated the sample size dependence of the types of vortex states, i.e., multivortex states or giant vortex states, in mesoscopic superconducting squares by using the temperature dependence of vortex expulsion fields. The giant vortex states are stable in small samples and at high magnetic fi...

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Veröffentlicht in:Physica. C, Superconductivity Superconductivity, 2006-10, Vol.445-448, p.253-256
Hauptverfasser: Kanda, Akinobu, Baelus, Ben J., Shimizu, Natsumi, Tadano, Kumiko, Peeters, François M., Kadowaki, Kazuo, Ootuka, Youiti
Format: Artikel
Sprache:eng
Schlagworte:
Mesoscopic superconductivity
Phase transitions
Vortex states
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Zusammenfassung:We investigated the sample size dependence of the types of vortex states, i.e., multivortex states or giant vortex states, in mesoscopic superconducting squares by using the temperature dependence of vortex expulsion fields. The giant vortex states are stable in small samples and at high magnetic fields. The experimental results are compared with theoretical simulations based on the nonlinear Ginzburg–Landau theory.
ISSN:0921-4534
1873-2143
DOI:10.1016/j.physc.2006.04.010